58b1393e75
EF10 signed image layout header is generated from firmware sources. Signed-off-by: Andrew Jackson <ajackson@solarflare.com> Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2016-2018 Solarflare Communications Inc.
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* All rights reserved.
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*/
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/*
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* This is NOT the original source file. Do NOT edit it.
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* To update the image layout headers, please edit the copy in
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* the sfregistry repo and then, in that repo,
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* "make layout_headers" or "make export" to
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* regenerate and export all types of headers.
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*/
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/* These structures define the layouts for the signed firmware image binary
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* saved in NVRAM. The original image is in the Cryptographic message
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* syntax (CMS) format which contains the bootable firmware binary plus the
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* signatures. The entire image is written into NVRAM to enable the firmware
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* to validate the signatures. However, the bootrom still requires the
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* bootable-image to start at offset 0 of the NVRAM partition. Hence the image
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* is parsed upfront by host utilities (sfupdate) and written into nvram as
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* 'signed_image_chunks' described by a header.
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*
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* This file is used by the MC as well as host-utilities (sfupdate).
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*/
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#ifndef CI_MGMT_SIGNED_IMAGE_LAYOUT_H
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#define CI_MGMT_SIGNED_IMAGE_LAYOUT_H
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/* Signed image chunk type identifiers */
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enum {
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SIGNED_IMAGE_CHUNK_CMS_HEADER, /* CMS header describing the signed data */
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SIGNED_IMAGE_CHUNK_REFLASH_HEADER, /* Reflash header */
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SIGNED_IMAGE_CHUNK_IMAGE, /* Bootable binary image */
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SIGNED_IMAGE_CHUNK_REFLASH_TRAILER, /* Reflash trailer */
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SIGNED_IMAGE_CHUNK_SIGNATURE, /* Remaining contents of the signed image,
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* including the certifiates and signature */
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NUM_SIGNED_IMAGE_CHUNKS,
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};
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/* Magic */
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#define SIGNED_IMAGE_CHUNK_HDR_MAGIC 0xEF105161 /* EF10 SIGned Image */
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/* Initial version definition - version 1 */
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#define SIGNED_IMAGE_CHUNK_HDR_VERSION 0x1
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/* Header length is 32 bytes */
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#define SIGNED_IMAGE_CHUNK_HDR_LEN 32
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/* Structure describing the header of each chunk of signed image
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* as stored in nvram
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*/
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typedef struct signed_image_chunk_hdr_e {
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/* Magic field to recognise a valid entry
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* should match SIGNED_IMAGE_CHUNK_HDR_MAGIC
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*/
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uint32_t magic;
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/* Version number of this header */
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uint32_t version;
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/* Chunk type identifier */
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uint32_t id;
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/* Chunk offset */
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uint32_t offset;
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/* Chunk length */
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uint32_t len;
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/* Reserved for future expansion of this structure - always set to zeros */
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uint32_t reserved[3];
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} signed_image_chunk_hdr_t;
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#endif /* CI_MGMT_SIGNED_IMAGE_LAYOUT_H */
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